Dayco 71943 Radiator Coolant Hose - Upper or Upper - Engine To Pipe
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Dayco
 Curved Radiator Hose

Dayco 71943 Radiator Coolant Hose - Upper or Upper - Engine To Pipe

Brand Dayco 71943
Position Upper
Color Black
End 1 Inside Diameter 1 5/16
End 2 Inside Diameter 1 5/16
Hose Type Single I.D. Hose
Material EPDM
SAE Specification SAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height 12 1/2
Product line Curved Radiator Hose
Fits Chevrolet and Pontiac · 11 vehicles

Curved radiator hose. EPDM construction for dependable coolant transfer.

Single I.D. hose. Uniform 1 5/16-inch ends for a consistent connection.

SAE J20R4 Class D-1. Built to meet recognized coolant hose standards.

Cross-references ACDelco 22137M, ACDelco 26345X and CARQUEST 21226 for the same application. See all 15.

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Not what you need? See all Radiator Coolant Hose options

Dayco 71943 Curved Radiator Hose

Dayco 71943 is a curved radiator coolant hose made from EPDM for reliable coolant routing in the engine bay. It is a black upper hose with a 1 5/16 in. inside diameter at both ends, built to match the curved routing used on select Chevrolet Cavalier, Pontiac Sunfire, and Chevrolet Corsica applications.

Key Features

  • EPDM construction for coolant system service
  • Curved radiator hose design for upper hose routing
  • 1 5/16 in. inside diameter at both ends
  • Black finish
  • Single I.D. hose configuration
  • Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Dayco 71943 radiator hose for select GM compact applications

Product Details

This Dayco curved radiator hose is engineered for upper coolant transfer where a formed hose shape is required to follow the factory routing path. The EPDM rubber construction is suited for hot coolant exposure, while the single I.D. hose layout and matching end diameters support a direct replacement on the specified vehicles. Dayco 71943 is a practical choice for owners searching for a radiator hose for 1998-2002 Chevrolet Cavalier upper hose replacement, a 1998-2002 Pontiac Sunfire upper radiator hose, or a 1994 Chevrolet Corsica upper coolant hose.

This part cross-references ACDelco 22137M and Gates 21226 for the same application.

Vehicle Fitment

  • Fits 1998-2002 Chevrolet Cavalier, Upper — Curved Radiator Hose
  • Fits 1998-2002 Pontiac Sunfire, Upper — Curved Radiator Hose
  • Fits 1994 Chevrolet Corsica, Upper — Curved Radiator Hose

Common Issues This Hose Can Address

  • Cracked or split upper radiator hose
  • Coolant seepage at the hose body
  • Softening or swelling from heat and age
  • Restricted coolant flow caused by hose deterioration
  • Loss of proper formed routing in the engine bay

Installation Notes

Verify the hose shape, end diameters, and upper position before installation. Inspect the radiator neck and engine connection points for corrosion, residue, or sharp edges that can affect sealing. Replace worn clamps as needed and confirm the hose follows the original curved routing without kinks or twist.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator coolant hose service.

Related reading

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2002ChevroletCavalier2.2LL4UpperCurved Radiator Hose
2002PontiacSunfire2.2LL4UpperCurved Radiator Hose
2001ChevroletCavalier2.2LL4UpperCurved Radiator Hose
2001PontiacSunfire2.2LL4UpperCurved Radiator Hose
2000ChevroletCavalier2.2LL4UpperCurved Radiator Hose
2000PontiacSunfire2.2LL4UpperCurved Radiator Hose
1999ChevroletCavalier2.2LL4UpperCurved Radiator Hose
1999PontiacSunfire2.2LL4UpperCurved Radiator Hose
1998ChevroletCavalier2.2LL4UpperCurved Radiator Hose
1998PontiacSunfire2.2LL4UpperCurved Radiator Hose
1994ChevroletCorsica2.2LL4UpperCurved Radiator Hose
Directly replaces or cross-references 15 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 22137MACDelco — 26345XCARQUEST — 21226CARQUEST — 22342Duralast — D71943Freshstart — 1195Gates — 21226Gates — 22342General Motors — 22595552General Motors — 22595553General Motors — 22618825General Motors — 22656323Goodyear — 62236NAPA — 7937NAPA — 8975